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PDF Form Text Replace

Find and replace text inside fillable PDF form fields with a single command.

Docs & OfficeBeginner★ 893⑂ 41AI score 9/10Last updated: Aug 13, 2026

What it does

  • Scans every form field in a fillable PDF, finds the search string, and writes the replacement value.
  • Saves a new PDF that keeps the form fields intact (not flattened) and reports how many fields changed.
  • Surfaces clear errors for missing input files, PDFs without form fields, missing search text, or unwritable output paths.

Who it's for

  • Office and admin staff who repeatedly update names, addresses, or dates in PDF forms
  • Back-office teams doing batch updates of form values
  • Developers building pypdf-based document automation

Examples

  1. Change "MANISH KUMAR" to "MANNU KUMAR" in tax form f5472.pdf
  2. Swap an old address for a new one across a set of application PDFs after a move
  3. Refresh dates and reference numbers in a quotation template

Caveat: scanned/image PDFs, flattened PDFs, and static page text outside form fields are not supported.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/instavm/coderunner/HEAD/skills/public/pdf-text-replace/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/public/pdf-text-replace folder from the GitHub repo instavm/coderunner into my ~/.claude/skills/pdf-text-replace/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/instavm/coderunner.git /tmp/coderunner && mkdir -p ~/.claude/skills && cp -r /tmp/coderunner/skills/public/pdf-text-replace ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/instavm/coderunner.git /tmp/coderunner
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r /tmp/coderunner/skills/public/pdf-text-replace ~/.claude/skills/
  5. Install the dependency: pip install pypdf (Python 3.7+).
  6. Restart Claude Code and ask something like "replace the name in this PDF form".
  7. The SKILL.md examples use container paths (/app/uploads/...); locally use ~/.claude/skills/pdf-text-replace/scripts/replace_text_in_pdf.py plus your real PDF paths.
View source on GitHub ↗License: Apache-2.0